APA (7th ed.) Citation

Herrick, R. (2009). Clark's Field. Project Gutenberg.

Chicago Style (17th ed.) Citation

Herrick, Robert. Clark's Field. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Herrick, Robert. Clark's Field. Project Gutenberg, 2009.

Warning: These citations may not always be 100% accurate.